E9 Error Code (Quantum Series)Updated 13 days ago
Introduction
The "E9" error code indicates the intelligent power module (IPM) or compressor driving control is operating abnormally.
This article is for the following systems:
- Quantum Ultra High-Wall (WYT-24)
- Quantum Hyperformance High-Wall (WYT-25)
- Quantum Fresh High-Wall (WYT-FA)
- Quantum Ultra 8-Way Ceiling Cassette (CYT-24)
- Quantum Ultra Ducted Ceiling Concealed (RYT-24)
- Quantum Ultra Universal Floor-Ceiling Flex (UYT-24)
If the system stops operating for IPM protection six times consecutively, it will display the error code. The system can't be recovered for operation, except by pressing the On/Off button.
